Abell 13

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Abell 13
Emission nebula
Planetary nebula
Abell 13 VLT FORS2.png
H-alpha image of Abell 13 taken with the Very Large Telescope
Observation data: J2000 epoch
Right ascension 06h 04m 47.9s [1]
Declination +03° 56′ 36″ [1]
Distance3900  ly
Apparent magnitude (V)19.87 [1]
Apparent dimensions (V)2' 32".58 [1]
Constellation Orion
Notable featuresAn attractive PN
DesignationsA66 13, PK 204-08.1, PN G 204.0-08.5, GSC2 N220002316027, UBC 6150, PN YM 28, UBV M 44654, CSI +03-06022
See also: Lists of nebulae

Abell 13 (known as the Onion ring nebula) [2] is a large and highly evolved planetary nebula located 3900 light years from Earth in the constellation of Orion. [3] It has a reddish color and is very faint. Abell 13 has a circular outer ring of Ha (Hydrogen-alpha). [4]

The nebula was discovered in 1955 by an American astronomer named George Ogden Abell on the photo plates of the Palomar Observatory Sky Survey (POSS). [5]

References

  1. 1 2 3 4 "Object query : PN A66 13". Simbad. Centre de Données astronomiques de Strasbourg . Retrieved 7 January 2015.
  2. ↑ "Abell 13". IMAGINGDEEPSPACE.COM. Retrieved 2024-05-10.
  3. ↑ "Abell 13". stellarscenes.net. Retrieved 2024-05-10.
  4. ↑ Iovene, Salvatore. "Abell 13 Planetary Nebula". AstroBin. Retrieved 2023-11-26.
  5. ↑ "Planetary Nebula Abell 13 | Deep⋆Sky Corner". www.deepskycorner.ch. Retrieved 2023-11-26.


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